Wireless keyboard connected but can't type in password

Question

I updated from an iOS 10.8 to 10.9 recently after my hard drive crashed and had to get replaced. I have connected the wireless keyboard connected but I can't type in certain key letters. I can only type in numbers and the middle set of letters. The other letters which I can't type into as my password.

Answer 1

Hello amandateavy,
It sounds like your bluetooth keyboard is connected but only some of the keys on it work. I recommend starting by performing a PRAM reset, and then booting to Safe Boot:
About NVRAM and PRAM
http://support.apple.com/kb/ht1379
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information.
And:
OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/ht1564
To start up into Safe Mode (to Safe Boot), follow these steps.
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key.
The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple logo and the progress indicator (looks like a spinning gear).
After the logo appears, you should see a progress bar during startup. This indicates that your computer is performing a directory check as part of Safe Mode.
To leave Safe Mode, restart your computer without holding any keys during startup.
Thank you for using Apple Support Communities.
Take care,
Sterling